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Economics of CO2 Capture Using the Calcium Cycle with a Pressurized Fluidized Bed Combustor

AuthorsMacKenzie, A.; Granatstein, D. L.; Anthony, Edward J.; Abanades García, Juan Carlos
Issue Date3-Feb-2007
PublisherAmerican Chemical Society
CitationEnergy & Fuels 21(2): 920-926 (2007)
AbstractFlue gas CO2 capture using a Ca-based chemical looping system has been shown to be potentially more cost-effective than traditional amine-based systems in bench-scale testing. The results of these initial tests are projected, using an Excel-based economic model, to estimate the 30-year levelized cost of CO2 capture per metric ton (t) for a utility-scale power plant. An order of magnitude capital and operating estimate for a 360 MW pressurized fluidized bed combustor (PFBC) is presented, assuming a western Canadian location. Additional costs for calciners, O2 plant, and related equipment necessary to create a Ca-based CO2 chemical capture loop are presented separately. These costs are evaluated in a series of spreadsheets, and the impact of process flows, as well as capital, operating/maintenance, and feedstock costs are determined in a sensitivity analysis. The financial results for CO2 capture are found to compare favorably with amine-based capture systems.
Description7 pages, 2 figures, 9 tables.-- Printed version published Mar 21, 2007.
Publisher version (URL)http://dx.doi.org/10.1021/ef0603378
Appears in Collections:(INCAR) Artículos
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